题目选项分析

Consumer advocate: In our nation, food packages must list the number of calories per food serving. But most of the serving sizes used are misleadingly small and should be updated. The serving sizes were set decades ago, when our nation's people typically ate smaller portions than they do today, and, as a result, people eating typical portions today consume more calories than the package labeling appears to indicate that they will. It is time package labeling reflected these changes.

Which of the following is the main point of the consumer advocate's argument?

【选项】The serving sizes used on food packages in the consumer advocate's nation were set when people ate smaller portions on average than they do today.